Unreal Engine Issues

Scale by Safe zone setting for Scale box does not scale children as expected

Children of a scale box that is set to Scale by safe zone do not appear to scale as expected. ...

Rare error when launching to IOS, System.NullReferenceException: Object reference not set to an instance of an object

When launching to IOS from Mac, a vague error failed the launch on: System.NullReferenceException: Object reference not set to an instance of an object This was only encountered once and no other m ...

"Build" button causes "Validation failed" and breaks references of meshes in Sublevel according to a prescribed procedure

A licensee reported that "Build" button causes "Validation failed" and breaks meshes in a Sublevel according to a prescribed procedure. The process is quite complicated, but I can 100% reproduce thi ...

[CrashReport] UE4Editor-ShaderCore!FVertexFactoryParameterRef::SetMesh(FRHICommandList &,FShader *,FVertexFactory const *,FSceneView const &,FMeshBatchElement const &,unsigned int)

Generated from CrashReporter ...

Motion Controller meshes do not track with Motion Controller position within VRMode

This is a regression from release 4.21.2 Motion controller meshes are present in the level, they just aren't tracking alongside the motion controls. Motion controls still function as intended othe ...

iOS fails during build step with OSS Facebook plugin enabled due to spaces in filepath

When a user tries to package or launch onto an iOS device they will fail at the build step due to:[3/8] sh Unzipping: /Users/Shared/Epic Games/UE_4.22/Engine/Source/ThirdParty/Facebook/IOS/FacebookS ...

Long delay on iOS Device Output Log can cost loss of logging on some devices

If the delay to begin printing the log to the window is too long, some of the logging can be thrown out. This issue does not occur with Android Device Output log UPDATE1: The last time I reproduce ...

Send Console commands on tvOS

Hot reload can no longer be performed after adding an empty class to a Blueprint-only project

Adding an empty code class to a Blueprint-only project prevents the project from being able to perform any hot reloads. When clicking the Compile button in the Editor, a warning is added to the log ...

Piloting Actors and Cameras does not have expected results when focusing and orbiting

Piloting a camera or actor in the scene does not have expected camera controls when focusing and orbiting something while holding Alt. ...